Duke doesn't need to learn flight-type magic anymore and can already achieve the effect of flying in the air, though the speed is relatively slow.
After Gravity Slowdown reached max level, all the skills he could consistently perform except for the Corrosive Mud Potion have reached maximum level.
The Corrosive Mud Potion is still far from max level and will require a lot of magic stones.
Duke must conserve his magic stones now, as they need to be used for purchasing the Dawn and Dusk Potion for promotion to a First-class Wizard Apprentice.
The market price for the Dawn and Dusk Potion is usually between eight to nine hundred magic stones, with the raw materials costing around four to five hundred magic stones.
He also considered refining the Dawn and Dusk Potion himself, which would reduce the production cost slightly, but the learning cost is too high.
Though the Dawn and Dusk Potion is merely a Secondary Potion, the refining process is still extremely complex.
